There are four prime numbers written in ascending order of magnitude. The product of the first three is 385 and of the last three is 1001. Find the fourth number ?

There are four prime numbers written in ascending order of magnitude. The product of the first three is 385 and of the last three is 1001. Find the fourth number ?

A 17

B 19

C 13

D 11

Solution

Correct Answer: Option C

(385/1001) = 5/13

First Number is 5

=> Fourth number is 13